Test charts for horizontal spindle capstain, turret and single spindle automatic lathes Part 2 Machinable bar dia. 25 mm or less and chuck dia. upto 160 mm

This technical specification outlines the standardized test procedures for evaluating the dimensional accuracy and geometric integrity of specific automatic screw machining equipment. It focuses particularly on machines designed to handle workpieces with a maximum bar diameter of 25 millimeters and spindles or chucks not exceeding 160 millimeters in diameter. The document details the methodologies for assessing performance parameters, ensuring that production capabilities meet defined operational benchmarks. By establishing uniform criteria for measurement and acceptance, it facilitates consistent quality control across manufacturing environments utilizing this class of machinery. The content covers essential verification steps required to confirm that the equipment functions within specified tolerances for precision turning operations. This framework supports manufacturers and users in validating machine performance without resorting to subjective assessments. Adherence to these established protocols aids in maintaining reliable production standards and ensuring interchangeability of results across different facilities. The guidelines provide a structured approach to testing while addressing the specific constraints associated with small-diameter automatic lathes and turret lathes.